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Nayak K, Ghosh P, Barman S, Sudhamalla B, Theato P, De P. Amyloid β-Peptide Segment Conjugated Side-Chain Proline-Based Polymers as Potent Inhibitors in Lysozyme Amyloidosis. Bioconjug Chem 2024; 35:312-323. [PMID: 38420925 DOI: 10.1021/acs.bioconjchem.3c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Developing effective amyloidosis inhibitors poses a significant challenge due to the dynamic nature of the protein structures, the complex interplay of interfaces in protein-protein interactions, and the irreversible nature of amyloid assembly. The interactions of amyloidogenic polypeptides with other peptides play a pivotal role in modulating amyloidosis and fibril formation. This study presents a novel approach for designing and synthesizing amyloid interaction surfaces using segments derived from the amyloid-promoting sequence of amyloid β-peptide [VF(Aβ(18-19)/FF(Aβ(19-20)/LVF(Aβ(17-19)/LVFF(Aβ(17-20)], where VF, FF, LVF and LVFF stands for valine phenylalanine dipeptide, phenylalanine phenylalanine dipeptide, leucine valine phenylalanine tripeptide and leucine valine phenylalanine phenylalanine tetrapeptide, respectively. These segments are conjugated with side-chain proline-based methacrylate polymers serving as potent lysozyme amyloidosis inhibitors and demonstrating reduced cytotoxicity of amyloid aggregations. Di-, tri-, and tetra-peptide conjugated chain transfer agents (CTAs) were synthesized and used for the reversible addition-fragmentation chain transfer polymerization of tert-butoxycarbonyl (Boc)-proline methacryloyloxyethyl ester (Boc-Pro-HEMA). Deprotection of Boc-groups from the side-chain proline pendants resulted in water-soluble polymers with defined peptide chain ends as peptide-polymer bioconjugates. Among them, the LVFF-conjugated polymer acted as a potent inhibitor with significantly suppressed lysozyme amyloidosis, a finding supported by comprehensive spectroscopic, microscopic, and computational analyses. These results unveil the synergistic effect between the segment-derived amyloid β-peptide and side-chain proline-based polymers, offering new prospects for targeting lysozyme amyloidosis.
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Affiliation(s)
- Kasturee Nayak
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Pooja Ghosh
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
- Centre for Interdisciplinary Sciences, JIS Institute of Advanced Studies & Research (JISIASR) Kolkata, JIS University, GP Block, Sector-5, Salt Lake, Kolkata, West Bengal 700091, India
| | - Soumen Barman
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Babu Sudhamalla
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
| | - Patrick Theato
- Karlsruhe Institute of Technology (KIT), Institute for Chemical Technology and Polymer Chemistry (ITCP), Engesserstraße 18, Karlsruhe 76131, Germany
- Karlsruhe Institute of Technology (KIT), Soft Matter Synthesis Laboratory,Institute for Biological Interfaces III (IBG-3), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Priyadarsi De
- Polymer Research Centre and Centre for Advanced Functional Materials, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal 741246, India
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Mathew J, Ru-Hung, Le TN, Pham HP, Kumar P, Lee CK, Shunmugam R, Rao NV. ROS-responsive camptothecin-linked thioketal drug delivery system based on ring-closing polymerization. Eur Polym J 2024; 202:112646. [DOI: 10.1016/j.eurpolymj.2023.112646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
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Kumar R, Kumar P, Panigrahi S, Lakshminarasimhan N, Shunmugam R. Efficient removal of rhodamine B and methylene blue from water using polyurethane based porous material. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rajan Kumar
- Polymer Research Centre (PRC), Centre for Advanced Functional Materials (CAFM), Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata (IISER K) Mohanpur West Bengal India
- Department of Chemistry, Royal School of Applied and Pure Sciences (RSAPS) The Assam Royal Global University Guwahati Assam India
| | - Pawan Kumar
- Polymer Research Centre (PRC), Centre for Advanced Functional Materials (CAFM), Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata (IISER K) Mohanpur West Bengal India
| | - Swati Panigrahi
- Polymer Research Centre (PRC), Centre for Advanced Functional Materials (CAFM), Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata (IISER K) Mohanpur West Bengal India
| | - Narayanan Lakshminarasimhan
- Electro‐organic and Materials Electrochemistry Division CSIR‐Central Electrochemical Research Institute (CECRI) Karaikudi Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad India
| | - Raja Shunmugam
- Polymer Research Centre (PRC), Centre for Advanced Functional Materials (CAFM), Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata (IISER K) Mohanpur West Bengal India
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Mandal P, Mukherjee M, Shunmugam R. Cosolvent effect on morphogenic changes of self-assembled aggregates from biodegradable polylactones. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2022. [DOI: 10.1080/10601325.2022.2111971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Piyali Mandal
- Department of Chemical Sciences, Polymer Research Centre, Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal, India
| | - Madhumita Mukherjee
- Department of Polymer Science and Technology, University of Calcutta, Kolkata, West Bengal, India
| | - Raja Shunmugam
- Department of Chemical Sciences, Polymer Research Centre, Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, West Bengal, India
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